Clear plaques 0.1 mm. Conspicuous capsomers. Morphologically identical with the following phage species: Twort(Staphylococcus), SP50 (Bacillus), fri (Lactobacillus). Morphologically related to species A19 of Brochothrix. Replaces phage RZh which is no longer available (A.S. Tikhonenko).
